CN110018595B

CN110018595B - Display panel and display device

Info

Publication number: CN110018595B
Application number: CN201910338587.XA
Authority: CN
Inventors: 吴昊
Original assignee: Xiamen Tianma Microelectronics Co Ltd
Current assignee: Xiamen Tianma Microelectronics Co Ltd
Priority date: 2019-04-25
Filing date: 2019-04-25
Publication date: 2021-11-12
Anticipated expiration: 2039-04-25
Also published as: CN110018595A; US10725344B1

Abstract

The invention discloses a display panel and a display device, which are provided with a display area and a non-display area surrounding the display area, wherein the non-display area comprises a first substrate and a second substrate which are oppositely arranged; the first substrate comprises a substrate base plate, a first fan-out wiring and a planarization layer, wherein the first fan-out wiring and the planarization layer are arranged on one side, close to the second substrate, of the substrate base plate; the frame sealing glue is overlapped with the first fan-out routing; the first fan-out routing comprises a first routing, a second routing and a third routing which are connected in sequence; the first wires are sequentially arranged to form a first wire routing area, the second wires are sequentially arranged to form a second wire routing area, and the third wires are sequentially arranged to form a third wire routing area; the distance between the adjacent second wires is greater than the distance between the adjacent first wires, and the distance between the adjacent second wires is greater than the distance between the adjacent third wires; the planarization layer is provided with first opening, and first opening and frame sealing glue all overlap with the second zone of walking about the line.

Description

Display panel and display device

[ technical field ] A method for producing a semiconductor device

The present invention relates to the field of technologies, and in particular, to a display panel and a display device including the display panel.

[ background of the invention ]

With the continuous development of the display market, the visual effect of the display screen is more and more strictly required by consumers, so that the requirements on the appearance design of the display screen are diversified, and the requirements on the screen occupation ratio are higher and higher. The trend of the comprehensive screen technology is to pursue a screen proportion of more than or equal to 90% through the design of an ultra-narrow frame or even no frame, and under the condition that the total area of the machine body is not changed, the display area is maximized, and the visual effect is more brilliant.

However, the frame along with the display screen is more and more narrow, often can influence the sealing quality of display screen to lead to the display screen to block the variation of steam performance, especially when carrying out reliability test to the display screen, inside steam gets into the display screen easily, lead to the inside circuit that exposes in steam of display screen to be corroded, thereby appear showing bad problem.

[ summary of the invention ]

In order to solve the above technical problems, the present invention provides a display panel and a display device including the same.

In a first aspect, an embodiment of the present invention provides a display panel, which is provided with a display area and a non-display area surrounding the display area, and the display panel includes a first substrate and a second substrate that are oppositely disposed; the first substrate comprises a substrate base plate, and a plurality of first fan-out wires and a planarization layer which are arranged on one side of the substrate base plate close to the second substrate, wherein the plurality of first fan-out wires are positioned in the non-display area and on one side of the planarization layer far away from the substrate base plate; the display panel further comprises frame sealing glue positioned in the non-display area, the first substrate and the second substrate are attached through the frame sealing glue, and the frame sealing glue is overlapped with the first fan-out wiring in a direction perpendicular to a light-emitting surface of the display panel; the first fan-out routing comprises a first routing, a second routing and a third routing which are sequentially connected, the first routing extends along a first direction, the second routing extends along a second direction, the third routing extends along a third direction, the first direction and the second direction are arranged in a crossed mode, and the second direction and the third direction are arranged in a crossed mode; the first wires are sequentially arranged to form a first wire routing area, the second wires are sequentially arranged to form a second wire routing area, the third wires are sequentially arranged to form a third wire routing area, and the second wire routing area is located between the first wire routing area and the third wire routing area; the distance between the adjacent second wires is greater than the distance between the adjacent first wires, and the distance between the adjacent second wires is greater than the distance between the adjacent third wires; the planarization layer is provided with a first opening, and the first opening is overlapped with the frame sealing glue and the second wiring area in the direction perpendicular to the light-emitting surface of the display panel.

In a second aspect, an embodiment of the present invention further provides a display device, including the display panel provided in the first aspect.

Compared with the prior art, the display panel and the display device provided by the embodiment of the invention have the advantages that the first fan-out wirings which are overlapped with the frame sealing glue and are arranged on the side, away from the substrate, of the planarization layer of the first substrate are arranged in multiple sections, so that a certain non-dense wiring area, namely the second wiring area, is formed between the dense fan-out wirings, the first opening is arranged on the planarization layer of the area, namely part of the planarization layer of the area is excavated, so that the frame sealing glue used for attaching the first substrate and the second substrate of the display panel can be embedded into the first opening, the overlapped part of the first fan-out wirings and the first opening is not contacted with the planarization layer any more, even if the planarization layer made of organic materials adsorbs water vapor, the area can be isolated, the first fan-out frame sealing glue of the area is difficult to corrode, and the problem of poor frame sealing glue of the wirings directly contacted with the first fan-out wirings can not be caused, the water vapor is difficult to enter the display panel again to corrode other circuits, so that the display effect of the display panel is improved.

[ description of the drawings ]

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic top view of a display panel according to an embodiment of the present invention;

FIG. 2 is an enlarged schematic view of the dashed box F of FIG. 1;

FIG. 3 is a schematic cross-sectional view along AA' of FIG. 2;

FIG. 4 is a schematic cross-sectional view taken along direction BB' in FIG. 2;

FIG. 5 is a schematic top view of another display panel provided in accordance with an embodiment of the present invention;

FIG. 6 is an enlarged schematic view of the dashed box F of FIG. 5;

FIG. 7 is a schematic cross-sectional view along AA' of FIG. 6;

FIG. 8 is a schematic cross-sectional view taken along direction BB' in FIG. 6;

FIG. 9 is a schematic cross-sectional view taken along the direction CC' in FIG. 6;

FIG. 10 is a schematic top view of another display panel provided in accordance with an embodiment of the present invention;

FIG. 11 is an enlarged schematic view of the dashed box F of FIG. 10;

fig. 12 is a schematic top view illustrating a touch structure according to an embodiment of the invention;

FIG. 13 is a schematic top view of another display panel according to an embodiment of the present invention;

FIG. 14 is an enlarged schematic view of the dashed box F of FIG. 13;

FIG. 15 is a schematic cross-sectional view in the direction AA' of FIG. 14;

FIG. 16 is a schematic cross-sectional view taken along direction BB' in FIG. 14;

FIG. 17 is a schematic cross-sectional view taken along the direction CC' in FIG. 14;

FIG. 18 is a schematic top view of a display area according to an embodiment of the present invention;

fig. 19 is a schematic structural diagram of a display device according to an embodiment of the present invention.

[ detailed description ] embodiments

For better understanding of the technical solutions of the present invention, the following detailed descriptions of the embodiments of the present invention are provided with reference to the accompanying drawings.

It should be understood that the described embodiments are only some embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the examples of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

It should be understood that the term "and/or" as used herein is merely one type of association that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

It should be understood that although the terms first, second, etc. may be used herein to describe devices in accordance with embodiments of the present invention, these devices should not be limited by these terms. These terms are only used to distinguish one device from another. For example, a first device may also be referred to as a second device, and similarly, a second device may also be referred to as a first device, without departing from the scope of embodiments of the present invention.

As mentioned in the background section, the narrower and narrower borders of the display screen may affect the sealing quality of the display screen, especially the sealing quality of the display screen on the step area side. A driving chip is usually bound in the step area, and for a display screen with a non-narrow frame, in order to enhance the performance of blocking water vapor, a layer of sealing adhesive needs to be coated between the driving chip and the display area; and along with the frame is more and more narrow, the distance between drive chip and the display area is too short, leads to the technology on the part region be difficult to the coating seal glue to make the performance variation that the display screen blockked steam, inside steam gets into the display screen easily, lead to partial metal circuit to be corroded, thereby the bad problem of display screen display appears.

In view of the foregoing, an embodiment of the present invention provides a display panel, which includes a display area and a non-display area surrounding the display area, the display panel including a first substrate and a second substrate that are disposed opposite to each other; the first substrate comprises a substrate base plate, a plurality of first fan-out wires and a planarization layer, wherein the first fan-out wires and the planarization layer are arranged on one side, close to the second substrate, of the substrate base plate; the display panel also comprises frame sealing glue positioned in the non-display area, the first substrate and the second substrate are jointed through the frame sealing glue, and the frame sealing glue is overlapped with the first fan-out wiring in the direction vertical to the light-emitting surface of the display panel; the first fan-out routing comprises a first routing, a second routing and a third routing which are connected in sequence, the first routing extends along a first direction, the second routing extends along a second direction, the third routing extends along a third direction, the first direction and the second direction are arranged in a crossed mode, and the second direction and the third direction are arranged in a crossed mode; the first wires are sequentially arranged to form a first wire routing area, the second wires are sequentially arranged to form a second wire routing area, the third wires are sequentially arranged to form a third wire routing area, and the second wire routing area is located between the first wire routing area and the third wire routing area; the distance between the adjacent second wires is greater than the distance between the adjacent first wires, and the distance between the adjacent second wires is greater than the distance between the adjacent third wires; the planarization layer is provided with a first opening, and the first opening is overlapped with the frame sealing glue and the second wiring area in the direction perpendicular to the light-emitting surface of the display panel.

Referring to fig. 1 to 4, fig. 1 is a schematic top view of a display panel according to an embodiment of the present invention, fig. 2 is an enlarged schematic view of a dashed box in fig. 1, fig. 3 is a schematic cross-sectional view along AA 'in fig. 2, and fig. 4 is a schematic cross-sectional view along BB' in fig. 2. For ease of understanding, fig. 1 to 4 only show a partial structure of the display panel. The display panel is provided with a display area AA and a non-display area NA surrounding the display area AA, and comprises a first substrate 100 and a second substrate 200 which are oppositely arranged; the first substrate 100 includes a substrate 110, and a plurality of first fan-out traces 130 and a planarization layer 120 disposed on one side of the substrate 110 close to the second substrate 200, wherein the plurality of first fan-out traces 130 are located in the non-display area NA and on one side of the planarization layer 120 away from the substrate 110; the display panel further comprises a frame sealing adhesive 300 located in the non-display area NA, the first substrate 100 and the second substrate 200 are attached by the frame sealing adhesive 300, and the frame sealing adhesive 300 is overlapped with the first fan-out trace 130 in a direction z perpendicular to the light-emitting surface of the display panel; the first fan-out trace 130 includes a first trace 131, a second trace 132 and a third trace 133 which are connected in sequence, the first trace 131 extends along a first direction a1, the second trace 132 extends along a second direction a2, the third trace 133 extends along a third direction a3, the first direction a1 and the second direction a2 are arranged in a crossed manner, and the second direction a2 and the third direction a3 are arranged in a crossed manner; the first wires 131 are sequentially arranged to form a first wire routing area f1, the second wires 132 are sequentially arranged to form a second wire routing area f2, the third wires 133 are sequentially arranged to form a third wire routing area f3, and the second wire routing area f2 is located between the first wire routing area f1 and the third wire routing area f 3; the spacing d2 between the adjacent second traces 132 is greater than the spacing d1 between the adjacent first traces 131, and the spacing d2 between the adjacent second traces 132 is greater than the spacing d3 between the adjacent third traces 133; the planarization layer 120 is provided with a first opening 121, and in a direction z perpendicular to the light emitting surface of the display panel, the first opening 121 overlaps the sealant 300 and overlaps the second wire trace region f 2.

It is understood that, as shown in fig. 1, the display panel further has a step area SA in the non-display area NA, and the plurality of first fan-out traces 130 are led out from the step area SA and connected to the driving chip 400. In the prior art, fan-out traces of a display panel are usually densely arranged, and compared with the prior art, in the display panel provided in the embodiment of the present invention, a plurality of sections of folding lines are disposed on the first fan-out trace 130 overlapping with the sealant 300 and disposed on the side of the planarization layer 120 of the first substrate 100 away from the substrate 110, so that a certain non-dense trace region, i.e., the second trace region f2, is formed between the dense fan-out traces, and the planarization layer 120 in the region is provided with the first opening 121, that is, a part of the planarization layer 120 in the region is removed, so that the sealant 300 for attaching the first substrate 100 and the second substrate 200 of the display panel can be embedded into the first opening 121, and the overlapping part of the first fan-out trace 130 and the first opening 121 is no longer in contact with the planarization layer 120. The planarization layer 120 is typically made of an organic material, which is prone to absorb moisture. Even if a certain amount of water vapor is adsorbed by the planarization layer 120 of the present invention, the water vapor is isolated in the second wire routing area f2, and the first fan-out wire 130 of the second wire routing area f2 is difficult to corrode, so that the frame sealing adhesive 300 directly contacting with the first fan-out wire 130 is not bad, and the water vapor is difficult to enter the display panel again to corrode other lines, thereby improving the display effect of the display panel. Further, in the step area SA, a part of the area between the driving chip 400 and the display area AA may not be coated with a sealant, so that the distance between the driving chip 400 and the display area AA may be shortened, which is beneficial to realizing a narrow frame. It should be noted that the sealant 300 is not referred to as the sealant 300, the sealant 300 is used for bonding the first substrate 100 and the second substrate 200 to form a liquid crystal cell, and the sealant is usually coated in a region between the driving chip and the display region in the step region to more effectively block water vapor from entering the display panel.

Optionally, in this embodiment, the first direction a1 and the third direction a3 may be arranged in parallel, that is, the extending directions of the first routing lines 131 and the third routing lines 133 are the same, which is convenient for manufacturing the display panel.

Further, the first opening 121 may be a strip-shaped structure, and in a direction z perpendicular to the light emitting surface of the display panel, the strip-shaped structure may overlap with the plurality of second traces 132, that is, by increasing the extending length of the first opening 121, the performance of blocking water vapor is enhanced. The extending direction of the first opening 121 may be parallel to the arrangement direction of the second trace 132, so that the extending length of the first opening 121 may be increased to a greater extent, so as to enhance the performance of blocking water vapor.

Referring to fig. 5-9, fig. 5 is a top view of another display panel according to an embodiment of the present invention, fig. 6 is an enlarged view of a dashed box in fig. 5, fig. 7 is a cross-sectional view along AA ' in fig. 6, fig. 8 is a cross-sectional view along BB ' in fig. 6, and fig. 9 is a cross-sectional view along CC ' in fig. 6. In this embodiment, the same parts as those of the display panel shown in fig. 1 to 4 are not repeated, but the difference is that the first opening 121 is a block structure, and the first opening 121 and the first fan-out trace 130 are not overlapped in a direction z perpendicular to the light emitting surface of the display panel. Since the planarization layer 120 is generally relatively thick, the height difference between the area where the first opening 121 is disposed and the area where the first opening 121 is not disposed is relatively large, if the first opening 121 and the first fan-out trace 130 are overlapped, that is, a part of the first fan-out trace 130 is located in the first opening 121, at the boundary of the first opening 121, the first fan-out trace 130 needs to be climbed, which easily causes the first fan-out trace 130 to be broken, thereby causing a disconnection and affecting normal display of the display panel. In the embodiment, the first opening 121 is not overlapped with the first fan-out trace 130, so that a climbing phenomenon can be avoided, the first fan-out trace 130 is prevented from being broken, and the reliability of the display panel is enhanced.

Optionally, in this embodiment, one first opening 121 is disposed between every two adjacent second traces 132. Since the first opening 121 and the first fan-out trace 130 are not overlapped in the direction z perpendicular to the light emitting surface of the display panel, the first opening 121 needs to be disconnected at the first fan-out trace 130. In order to effectively block moisture, one first opening 121 may be disposed between every two adjacent second traces 121.

Referring to fig. 10 and fig. 11, fig. 10 is a schematic top view of another display panel according to an embodiment of the present invention, and fig. 11 is an enlarged schematic view of a dashed-line frame in fig. 10. In this embodiment, the same parts as those of the display panel shown in fig. 5 to 9 are not repeated, but the first fan-out trace 130 further includes a fourth trace 134 and a fifth trace 135, two ends of the fourth trace 134 are respectively connected to the third trace 133 and the fifth trace 135, the fourth trace 134 extends along a fourth direction a4, the fifth trace 135 extends along a fifth direction a5, the fourth direction a4 is arranged to intersect with the third direction a3, and the fourth direction a4 is arranged to intersect with the fifth direction a 5; the fourth wires 134 are sequentially arranged to form a fourth wire area f4, the fifth wires 135 are sequentially arranged to form a fifth wire area f5, and the fourth wire area f4 is located between the third wire area f3 and the fifth wire area f 5; the spacing d4 between the adjacent fourth traces 134 is greater than the spacing d3 between the adjacent third traces 133, and the spacing d4 between the adjacent fourth traces 134 is greater than the spacing d5 between the adjacent fifth traces 135; the planarization layer 120 is provided with a second opening 122, and in a direction z perpendicular to the light emitting surface of the display panel, the second opening 122 overlaps the frame sealing adhesive 300 and overlaps the fourth wiring region f 4.

Optionally, in this embodiment, the fourth direction a4 and the second direction a2 may be disposed in parallel, and the fifth direction a5 and the third direction a3 may be disposed in parallel, that is, the extending directions of the fourth trace 134 and the second trace 132 are the same, and the extending directions of the fifth trace 135 and the third trace 133 are the same, so that the manufacturing of the display panel is facilitated.

In this embodiment, in order to further improve the performance of the display panel for blocking water vapor, the number of the fold lines of the first fan-out trace 130 is increased, so that another non-dense trace region, that is, a fourth trace region f4, is formed on the basis of the second trace region f2, the planarization layer 120 in this region is correspondingly provided with the second opening 122, and the second opening 122 overlaps the frame sealing adhesive 300 in the direction z perpendicular to the light emitting surface of the display panel. The principle of this arrangement for blocking moisture is similar to that of the first opening 121, and will not be described herein. Particularly for the embodiments of fig. 5 to 9, since the first opening 121 and the first fan-out trace 130 do not overlap, that is, the first opening 121 needs to be disconnected at the first fan-out trace 130, by providing the second opening 122, and as can be seen from fig. 10, in the second direction a2, the first opening 121 and the second opening 122 are staggered with each other, so that the first opening 121 and the second opening 122 can make up each other, and the path of moisture entering is blocked more effectively, and the performance of blocking moisture is enhanced.

It should be noted that, in this embodiment, the fourth trace 134, the fifth trace 135 and the second opening 122 are only exemplarily provided on the basis of the embodiment of fig. 5 to 9, and in the figure, the second opening 122 is taken as a block structure, and the second opening 122 and the first fan-out trace 130 are not overlapped in a direction z perpendicular to the light emitting surface of the display panel. In other alternative embodiments of the present invention, on the basis of the embodiments of fig. 1 to fig. 4, a fourth trace 134, a fifth trace 135 and a second opening 122 may also be disposed, the second opening 122 may also be a stripe structure, and in a direction z perpendicular to the light-emitting surface of the display panel, the second opening 122 may also overlap with the plurality of second traces 132, which is not specifically limited in this embodiment of the present invention.

As can be seen from the foregoing embodiments, in the display panel of the invention, the first fan-out trace 130 is located on the side of the planarization layer 120 away from the substrate 110, and the first fan-out trace 130 may be directly disposed on the surface of the side of the planarization layer 120 away from the substrate 110 and directly contact the surface of the side of the planarization layer 120 away from the substrate 110. The first fan-out trace 130 is generally used to connect touch electrodes integrated inside the display panel. Referring to fig. 11, fig. 11 is a schematic top view of a touch structure according to an embodiment of the present invention. The touch structure may include a plurality of touch electrodes TP arranged in an m × n matrix, where m and n are integers greater than 1 (in the drawing, m is 4, and n is 3 as an example); the plurality of touch electrodes TP are multiplexed as a common electrode for display in the display panel in the display stage, and touch detection is performed through self capacitance in the touch stage. Specifically, each touch electrode TP is connected to at least one touch electrode trace L (one is exemplarily shown in fig. 11), and the touch electrode TP and the touch electrode trace L may be electrically connected through a via H. The touch electrode trace L is led out to the non-display area, and is electrically connected to a driving chip (not shown in fig. 11) through each first fan-out trace in each of the above embodiments, and the driving chip is configured to provide a touch scanning signal to the touch electrode TP and perform touch detection according to a touch detection signal output by the touch electrode TP. Of course, the touch structure of the present invention is not limited thereto, and may be other structures, which are not described herein again.

Referring to fig. 13-17, fig. 13 is a schematic top view of another display panel according to an embodiment of the present invention, fig. 14 is an enlarged view of a dashed box in fig. 13, fig. 15 is a schematic cross-sectional view along AA ' in fig. 13, fig. 16 is a schematic cross-sectional view along BB ' in fig. 13, and fig. 17 is a schematic cross-sectional view along CC ' in fig. 13. In this embodiment, the same parts as those of the display panel shown in fig. 1 to 4 are not repeated, but the difference is that the first substrate 100 further includes a plurality of second fan-out traces 140 disposed on one side of the substrate 110 close to the second substrate 200, the second fan-out traces 140 are disposed on one side of the planarization layer 120 close to the substrate 110, in a direction z perpendicular to the light-emitting surface of the display panel, the second fan-out traces 140 are at least partially overlapped with the first fan-out traces 130, and an overlapped region of the second fan-out traces 140 and the first fan-out traces 130 is an overlapped region; in a direction z perpendicular to the light emitting surface of the display panel, the first opening 121 does not overlap with the overlapping area.

It should be noted that in this embodiment, the second fan-out trace 140 is located on a side of the planarization layer 120 close to the substrate 110, and at least a part of the structure of the second fan-out trace 140 may be directly disposed on a surface of the planarization layer 120 close to the substrate 110, and directly contact with a surface of the planarization layer 120 close to the substrate 110. Then if the first opening 121 overlaps the overlap area, the first and second fan-out traces may come into direct contact and short circuit occurs. Therefore, the first opening 121 is not overlapped with the overlapping region disposed in the direction z perpendicular to the light emitting surface of the display panel. In this embodiment, as shown in fig. 13 to 17, the second fan-out trace 140 is a double-layer trace, the second fan-out trace 140 includes a first trace 141 and a second trace 142, where the first trace 141 is directly disposed on a surface of the planarization layer 120 on a side close to the substrate 110 and directly contacts a surface of the planarization layer 120 on a side close to the substrate 110, the second trace 142 is disposed on a side of the first trace 141 close to the substrate 110, an insulating layer 150 is disposed between the first trace 141 and the second trace 142, and the first trace 141 is electrically connected to the second trace 142 through a via h. More specifically, in this embodiment, it is necessary to arrange the first fan-out trace 130 and the first wiring 141 in the direction z perpendicular to the light emitting surface of the display panel, and the overlapping region of the first fan-out trace 130 and the first wiring 141 does not overlap with the first opening 121.

In each of the above embodiments, the first substrate 100 may be an array substrate, and a liquid crystal layer may be disposed between the first substrate 100 and the second substrate 200. Referring to fig. 18, fig. 18 is a schematic top view of a display area according to an embodiment of the disclosure. In the display region, the first substrate 100 includes a plurality of scan lines g and a plurality of data lines d, the scan lines g extend along the y direction and are arranged along the x direction, the data lines d extend along the x direction and are arranged along the y direction, the scan lines g and the data lines d are insulated and crossed to define a plurality of sub-pixels, and the x direction and the y direction are crossed; the sub-pixel further includes a pixel electrode p, a common electrode (not shown in fig. 18), and a thin film transistor T on the first substrate 100. When the display panel displays, under the control of the corresponding scanning line g, the data line d corresponding to the source electrode of the thin film transistor T charges and discharges to the pixel electrode p corresponding to the drain electrode through the thin film transistor T, and a parallel electric field is formed between the pixel electrode p and the common electrode to drive the liquid crystal to rotate so as to realize the display function. It is to be understood that, in the present embodiment, the x direction may be parallel to the second direction a2, or may not be parallel to the second direction a2, which is not limited in the present invention.

In one embodiment, in conjunction with fig. 13 to 18, the second fan-out trace 140 is used to connect the data lines d and the driving chip 400, that is, the driving chip 400 transmits the display data signal to each data line d through the second fan-out trace 140. In addition, the first wiring 141 of the second fan-out wiring 140 may be fabricated in the same process layer as the data line d, and the second wiring 142 of the second fan-out wiring 140 may be fabricated in the same process layer as the scan line g, which is not described herein again.

In the above embodiments, the display panel and the display area of the display panel are both regular rectangles. In other optional embodiments of the present invention, the display panel, and the display area of the display panel may also be configured to be irregular. For example, four corners of the display area may be set to be circular arc, and four corners of the display panel may be set to be circular arc. For the special-shaped display panel, the frame needs to be further compressed, and the embodiment of the invention is more beneficial to the compression of the frame of the special-shaped display panel, so that the screen occupation ratio of the special-shaped display panel is improved.

It can be understood that in the above embodiments, the numbers of the first fan-out traces 130 and the second fan-out traces 140 are exemplary, and the number is not specifically limited in the present invention, and in an actual product, the numbers of the first fan-out traces 130 and the second fan-out traces 140 may be more, which is not described herein again.

Based on the same inventive concept, an embodiment of the present invention further provides a display device, fig. 19 is a schematic structural diagram of the display device provided in the embodiment of the present invention, and referring to fig. 19, the display device includes the display panel 500 provided in any embodiment of the present invention, and may further include structures such as a backlight module (not shown in fig. 19), which are not described herein again. In this embodiment, the display device is a mobile phone, and in other optional embodiments of the present invention, the display device may be any device having a display function, such as a tablet computer, a notebook, or a display.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. A display panel provided with a display area and a non-display area surrounding the display area,

the display panel comprises a first substrate and a second substrate which are oppositely arranged;

the first substrate comprises a substrate base plate, and a plurality of first fan-out wires and a planarization layer which are arranged on one side of the substrate base plate close to the second substrate, wherein the plurality of first fan-out wires are positioned in the non-display area and on one side of the planarization layer far away from the substrate base plate;

the display panel further comprises frame sealing glue positioned in the non-display area, the first substrate and the second substrate are attached through the frame sealing glue, and the frame sealing glue is overlapped with the first fan-out wiring in a direction perpendicular to a light-emitting surface of the display panel;

the first fan-out routing comprises a first routing, a second routing and a third routing which are sequentially connected, the first routing extends along a first direction, the second routing extends along a second direction, the third routing extends along a third direction, the first direction and the second direction are arranged in a crossed mode, and the second direction and the third direction are arranged in a crossed mode;

the first wires are sequentially arranged to form a first wire routing area, the second wires are sequentially arranged to form a second wire routing area, the third wires are sequentially arranged to form a third wire routing area, and the second wire routing area is located between the first wire routing area and the third wire routing area;

the distance between the adjacent second wires is greater than the distance between the adjacent first wires, and the distance between the adjacent second wires is greater than the distance between the adjacent third wires;

the planarization layer is provided with a first opening, and the first opening is overlapped with the frame sealing glue and the second wiring area in the direction perpendicular to the light-emitting surface of the display panel.

2. The display panel according to claim 1, wherein the first direction is arranged in parallel with the third direction.

3. The display panel according to claim 1, wherein the first openings are stripe structures.

4. The display panel according to claim 3, wherein an extending direction of the first opening is parallel to a direction of the second traces.

5. The display panel of claim 1, wherein the first opening is a block structure, and the first opening does not overlap with the first fan-out trace in a direction perpendicular to a light exit surface of the display panel.

6. The display panel according to claim 5, wherein one first opening is disposed between every two adjacent second traces.

7. The display panel of claim 1, wherein the first fan-out traces further include a fourth trace and a fifth trace, two ends of the fourth trace are respectively connected to the third trace and the fifth trace, the fourth trace extends along a fourth direction, the fifth trace extends along a fifth direction, the fourth direction is arranged to intersect with the third direction, and the fourth direction is arranged to intersect with the fifth direction;

the fourth wires are sequentially arranged to form a fourth wire routing area, the fifth wires are sequentially arranged to form a fifth wire routing area, and the fourth wire routing area is located between the third wire routing area and the fifth wire routing area;

the distance between the adjacent fourth wires is greater than the distance between the adjacent third wires, and the distance between the adjacent fourth wires is greater than the distance between the adjacent fifth wires;

the planarization layer is provided with a second opening, and the second opening is overlapped with the frame sealing glue and the fourth wiring area in the direction perpendicular to the light-emitting surface of the display panel.

8. The display panel according to claim 7, wherein the fourth direction and the second direction are parallel, and wherein the fifth direction and the third direction are parallel.

9. The display panel of claim 1, wherein the first substrate further comprises a plurality of second fan-out traces disposed on a side of the substrate close to the second substrate, the second fan-out traces are located on a side of the planarization layer close to the substrate, the second fan-out traces at least partially overlap the first fan-out traces in a direction perpendicular to a light exit surface of the display panel, and an overlapping area is a region where the second fan-out traces overlap the first fan-out traces;

in a direction perpendicular to the light emitting surface of the display panel, the first opening and the overlapping area are not overlapped.

10. A display device characterized by comprising the display panel according to any one of claims 1 to 9.